Function not definen in current scope

I'm simply trying to include this (fully STD compliant) function, but deCASSYfy( ... ) is then not recognized as an available function:

#include <deque>
#include <sstream>
#include <fstream>
#include <algorithm>

template< size_t colcnt >
std::deque< float >* deCASSYfy( const char*,const int (&cols)[ colcnt ] ); template< size_t colcnt >
std::deque< float >* deCASSYfy( std::ifstream&,const int (&cols)[ colcnt ] );

template< size_t colcnt >
std::deque< float >* deCASSYfy( const char *inFile,const int (&cols)[ colcnt ] ) {

	std::ifstream dataFile( inFile );
	return deCASSYfy( dataFile,cols );

template< size_t colcnt >
std::deque< float >* deCASSYfy( std::ifstream& inFile,const int (&cols)[ colcnt ] ) {

	if( !inFile.good( ) )
		throw "Filestram could not be read";
	std::cout << sizeof( cols );
	std::deque< float > *dataSet = new std::deque< float >( );
	std::string lastLine;
	float lastVal = 0;
	while( std::getline( inFile,lastLine ) ) {
		int fieldPos = 0;
		int j = 0;
		if( lastLine.find( "\t" )!= std::string::npos ) {
			for( int i = 0; j < colcnt; i++ )
				if( fieldPos != std::string::npos ) {
					std::istringstream lastField( lastLine.substr( fieldPos ) );
					fieldPos = lastLine.find( "\t",fieldPos + 1 );
					if( std::find( cols,cols + colcnt,i )!=( cols + colcnt ) ) {
						lastField >> std::scientific >> lastVal;
						dataSet->push_back( lastVal );
						j++;
					}
				} else {
					dataSet->push_back( 0.0 );
					j++;
				}
		}
	}
	return dataSet;